Answer:
Pythagorean Theorem : a²+b²=c²
a²+38²=42² => a²=1764+1444 => a²=3,208 inch => a=√3,208
=> a=56.64 inch
Step-by-step explanation:
Answer:
18
Step-by-step explanation:
You plug in 2 hours as your x value. You get 4(2) + 10 = 18.
Answer:
150 + 4x = 330
4x = 180
x = 45
Step-by-step explanation:
Answer:
The total amount of students in the class would be 30. The total amount of girls would be 12.
Step-by-step explanation:
60% * x = 18
(60/100) * x = 18
6x/10 = 186x = 18 * 10
6x = 180x = 180/6 = 30
The total number of students in the class is 30.
Number of girls in the class = 30 - 18 = 12
So there are 12 girls in the class.
The answer is 4 because 14-9=5 and 20/5=4
